Math is a universal language that can be used to predict the outcome of events based on extrapolating from a set of variables. While there are computer programs designed to help with this, it takes humans with the ability to understand the problem to create and adapt these varying programs.
Those people are in short supply and businesses are willing to pay top dollar for these exceptional people. Many people may not think of a major in mathematics to be a very lucrative career, but as business and technology becomes more complex, the need for mathematics increased. Computers can make hundreds of thousands of computations in a second, but it's still not enough for some of today's complex problems.
People with the mathematical and computational know how much help the computers figure out ways around the problem by creating shortcuts and other programming tools. It's not easy and there are only a handful of people that can do it in the world. These people are recruited at a early age and groomed for mathematical greatness. Anyone with a head for math should consider a career in mathematics.